Which reconstruction era organization worked to improve conditions for the newly-freed african-americans? the redeemers?

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a. seismic waves kill microoganisms b. seismic waves disrupts the sand and causes seafloor erosion c. seismic waves have virtually no adverse affects on marine life d. seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

What is a shocking irony about the villagers in the lottery

What is a characteristic of hunter-gatherer societies?